Automessage for Main Site Only?


The instructions for Automessage say to Network Activate it. But we only want to use it on the main site...we don't want to give sub-site owners the ability to use it. I mean, we do want messages to go out to owners of all new sub-sites, but we don't want sub-site owners to see the plugin menu items or have the ability to set up their own auto-messages.

Is it okay to just activate it on the main site? I know this is probably a dumb question but I wanted to make sure there wasn't a specific reason for saying to Network Activate it.